ALRDC Seminar New and Novel Artificial Lift Technologies ConocoPhillips, Houston, Texas May 14, 2014 Retrofitted Continuous Chemical Injection – The Next Level Rodger Lacy; Shonagh Mackie; Brian Marr, Weatherford Presented by: Rodger Lacy, Global Product Line Manager, Houston

Contents Overview of an existing Weatherford Insert String Hanger – Capillary (WISH-C). Components of a system. Description of new technology. Development status. Industry support needed. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 2

Overview of WISH-C WISH-C is used to retrofit continuous chemical injection. No xmas tree modifications are required. The existing control line: - –Is flushed and changed to treatment chemical. –Dual function – open SSV and, at increased pressure inject chemical. A capillary string and WISH-C hanger is run and locked into the SSV profile. The hanger has: - –A new lock profile and seal bores to land a WRSSV. –A port to allow control line fluid a path to function the new WRSSV. –A crack valve to allow chemical injection. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 3

Chemical Injection Valve Capillary String Well Control Sub Crack Valve WISH-C Hanger Insert Valve WISH-C Components – Bottom up May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 4

Existing Deployment Method May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 5 Current design WISH-C systems are run as following: - –Run #1 - the following set in TRSV/SVLN Injection valve, capillary string, well control sub and WISH hanger. –Run #2 - the following set in WISH Hanger Insert valve Slick line unit required to service the insert valve. Additional capillary unit required to service all other components.

Description of New Technology Proposal to re-engineer the crack valve to become integral with the insert valve. –Crack valve would become retrievable on slick line. –Reduced time and cost to service the crack valve. –Increased availability of suitable units (no capillary required). Will require re-engineering: - –WISH hanger. –Insert valve (will not affect current API 14A certification). –Chemical routing / flow path. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 6

Development Status Conceptual design complete. Still require: - –Finalise engineering drawings. –Manufacture prototype. –Complete lab testing. –Conduct field trials in live wells. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 7

What Support is Needed from Industry? Gauging of market potential and industry needs. Input on sizes required. Partnership to identify wells for field trials. Post trial review and optimisation. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 8

Copyright Rights to this presentation are owned by the company(ies) and/or author(s) listed on the title page. By submitting this presentation to the ALRDC Seminar for New or Novel Artificial Lift Technologies, they grant to the Artificial Lift Research and Development Council (ALRDC) rights to: –Display the presentation at the Seminar. –Place it on the web site. Other use of this presentation is prohibited without the expressed written permission of the author(s). The owner company(ies) and/or author(s) may publish this material in other journals or magazines if they refer to the ALRDC Seminar where it was first presented. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 9

Disclaimer The Artificial Lift Research and Development Council and its officers and trustees, and the ALRDC Seminar Steering Committee members, and their supporting organizations and companies (here- in-after referred to as the Sponsoring Organizations), and the author(s) of this Technical Presentation and their company(ies), provide this presentation at the ALRDC Seminar "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained. The views, opinions, and conclusions expressed in these presentations are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials. The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative sources. The Sponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose. May 14, ALRDC Seminar for New or Novel Artificial Lift Technologies, Houston, Texas 10